DUAL ELECTRODE SYSTEM FOR A CONTINUOUS ANALYTE SENSOR
First Claim
Patent Images
1. An analyte sensor for measuring an analyte in a host, the sensor comprising:
- a first working electrode disposed beneath an active enzymatic portion of a membrane; and
a second working electrode disposed beneath an inactive-enzymatic portion of a membrane, wherein the inactive enzymatic portion comprises at least one of a deactivated enzyme and an inactive enzyme.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed herein are systems and methods for a continuous analyte sensor, such as a continuous glucose sensor. One such system utilizes first and second working electrodes to measure additional analyte or non-analyte related signal. Such measurements may provide a background and/or sensitivity measurement(s) for use in processing sensor data and may be used to trigger events such as digital filtering of data or suspending display of data.
-
Citations
16 Claims
-
1. An analyte sensor for measuring an analyte in a host, the sensor comprising:
-
a first working electrode disposed beneath an active enzymatic portion of a membrane; and a second working electrode disposed beneath an inactive-enzymatic portion of a membrane, wherein the inactive enzymatic portion comprises at least one of a deactivated enzyme and an inactive enzyme. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An analyte sensor for measuring an analyte in a host, the sensor comprising:
-
a first working electrode disposed beneath an active enzymatic portion of a membrane; a second working electrode disposed beneath an inactive-enzymatic or non-enzymatic portion of a membrane; and an insulator located between the first working electrode and the second working electrode, wherein the first working electrode and the second working electrode are intertwined.
-
-
11. An analyte sensor for measuring an analyte concentration in a host, the sensor comprising:
-
a first working electrode configured to generate a first signal associated with analyte related electroactive compounds and non-analyte related electroactive compounds, wherein the analyte related electroactive compounds and the non-analyte related electroactive compounds have a first oxidation potential; and a second working electrode configured to generate a second signal associated with non-analyte related electroactive compounds, wherein the non-analyte related electroactive compounds have an oxidation potential that substantially overlaps with the first oxidation potential, and wherein the first working electrode and the second working electrode are at least one of bundled and twisted.
-
-
12. An analyte sensor for measuring an analyte in a host, the sensor comprising:
-
a first working electrode comprising a first electroactive surface disposed beneath an active enzymatic portion of a membrane, wherein the first working electrode defines a first longitudinal axis; a second working electrode comprising a second electroactive surface disposed beneath an inactive-enzymatic portion of a membrane or a non-enzymatic portion of a membrane; and a flow path diffusion barrier configured to substantially block diffusion of at least one of an analyte and a co-analyte between the first electroactive surface and the second electroactive surface by an offset of the first electroactive surface and the second electroactive surface along a longitudinal axis of the sensor. - View Dependent Claims (13, 14)
-
-
15. An analyte sensor for measuring an analyte in a host, the sensor comprising:
-
a first working electrode comprising a first electroactive surface disposed beneath an active enzymatic portion of a membrane, wherein the first working electrode defines a first longitudinal axis; a counter electrode comprising a second electroactive surface disposed beneath an inactive-enzymatic portion of a membrane or a non-enzymatic portion of a membrane, wherein the second working electrode defines a second longitudinal axis that is co-linear with the first longitudinal axis, wherein both the first longitudinal axis and the second longitudinal axis define a longitudinal axis of the sensor; and a flow path diffusion barrier configured to substantially block diffusion of at least one of an analyte and a co-analyte between the first electroactive surface and the second electroactive surface by an offset of the first electroactive surface and the second electroactive surface along the longitudinal axis of the sensor. - View Dependent Claims (16)
-
Specification